4 



Panicum waited Ell. Sk. \: 115 = Pamcum digitariokles Carpenter. In this 

 sheet is a label bearing the name "P. dimidMiatum." Muhlenberg consid- 

 ered this species under the same name {Panicum imlteri). See Scribner & 

 Merrill, Circular 27:2, of this Division. 



Panicum hirtellum Michx. ;-Ell. Sk. ] : n~y =02)lif<menns hirfelhts R. & S. 

 Panicum gibbum Ell. Sk. 1 : 116. 



Panicum molle Michx. ; Ell. Sk. 1 : 116 = ErwchJoa mollis Kunth. 



Panicum gymnocarpum Ell. Sk. 1 : 117. 



Panicum geniculatum Mnhl. ; Ell. Sk. 1 .- 117 = Pa7ucum proUfenim Lam. 



Panicum anceps Michx. ; Ell. Sk. 1 : 118. Not seen. 



Panicum hians Ell. Sk. 1 : 11^ = Pan icum melicarium Michx. 



licum latifolium Walt 

 reference to Sloane). 

 cover. 



Panicum latifolium Linn, (excluding 



cui^ 



Panicum scoparium Lamarck; Ell. Sk. 1:119. Recent investigations have 

 shown that Panicum scoparium Lam., has been entirely misiinderstood by 

 American botanists and that it is the form described by Elliott as Panicum 

 viscidum. See Scribner & Merrill Bui. 24:34 of this Division. A descrip- 

 tion of Elliott's plant is given below. 



Panicum ravenelii Scribn. & Merrill, U. S. Dept. Agr. Div. Agros. Biil. 24 : 34. 

 January 9, 1901. Panicum scoparium of Ell. Sk. Bot. S. C. and Ga. 1 : 119. 181T, 

 not Lam. Encycl. 4 : 144. 1797.— An erect or ascending, caespitose perennial 

 3 to 6 dm. high, with broad, ascending leaves, large spikelets and generally 

 few flowered panicles. Culms at first simple, later becoming branched, 

 rather densely papillate-pubescent with ascending or nearly appressed hairs; 

 nodes bearded with a dense ring of short spreading hairs, and with a smooth 

 ring immediately below ; sheaths shorter than the internodes, or the upper 

 ones crowded and overlapping, striate, distinctly papillate-pubescent, densely 

 bearded on the back at the apex ; ligule a fringe of rather stiff hairs 3 to 5 mm. 

 long ; leaf-blades lanceolate, acute, slightly narrowed at the roimded and 

 somewhat clasping base 8 to 13 cm. long, 1. 5 to 2 cm. wide, ciliate on the carti- 

 laginous margins, rather densely pubescent beneath with soft hairs, glab- 

 rous abore or rarely with few scattered papillate hairs, nerves faint above, 

 verj' prominent on the lower surface. Panicles about 10 cm. long, the 

 branches spreading or the lower ones often erect; rachis and branches 

 densely pubescent with short hairs. Spikelets 4 mm. long, ovate, obtuse, 

 slightly pubescent with short spreading hairs; first glume acuminate. 

 about one-third as long as the spikelet; second and third glumes 9 to 11 

 nerved ; towering glume very smooth. 



Type specimen in the Herbarium of Elliott, College of Charleston, Charleston, 

 S, C, type locality, South Carolina. 



DISTRIBUTION 



September, 



Specimens examined: District of Columbia : near Eastern Branch, L. F. Ward, 

 Jmie 16 1881 ; near Chain Bridge, E. S. Steele, 1899. Tennessee : no locality. 

 ^ M. Bam, 1893. South Carolina: no locality, Stephen Elliott, type in 

 Herbanumof Elliott; Aiken, W. H. Ravenel-P. L. -Scribner, 1894; Florida : 

 Apalaclncola A. W. Chapman, 2994a Biltmore Herbarium: Monticello, 305 

 R. Combs^ August 4, 1898. Arkansas: -'Northwest Arkansas" 31 F. L. 

 Harvey ; Benton County, E. N. Plank. Texas: Harve.^t.r No 7 F 



W 



W 



